Section steel welding device
By preheating the steel plate before welding the steel sections, the problems of unstable steel section products and low production efficiency are solved, and efficient and stable steel section welding effects are achieved.
Patent Information
- Application Number
- CN202423243538.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In existing steel section production lines, the shape of the finished steel sections is unstable and the production efficiency is low, mainly because the steel plates are directly welded without being heated and softened, resulting in internal stress and small bending angles that limit the incoming material speed.
Before welding the steel sections, the steel plates are preheated by a preheating device to soften them, and then welding is performed using smaller pressure welding rollers and a larger welding entry angle to improve the flexibility of the steel plates and the welding quality.
It improves the stability and production efficiency of steel section welding, reduces the deformation of finished products after welding, and enhances the welding process effect of high-frequency welding machines.
Smart Images
Figure CN223406178U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed steel welding in an automated section steel production line, in particular to a section steel welding device. Background Art
[0002] In the field of modern fully automatic steel production lines, in order to adapt to market demand, the production and processing of steel should gradually improve production efficiency and production quality. In the original production and processing technology, a larger pressure welding roller and a smaller entry angle are used, that is, a large-diameter pressure welding roller is used to press the two steel plates at the position where the two steel plates are spliced together. In this way, the steel plates are directly sent to the high-frequency welding position for welding after generating a small bending angle without being heated and softened. However, due to the hard steel plates, the input speed of the incoming materials in this processing method will not be too high, and the internal stress after welding will cause the shape of the finished steel section to be unstable and easily deformed. In order to solve the above technical problems and improve the stability of steel section forming and the efficiency of processing and production, technicians in this field preheat and soften the steel plates that need to be bent in advance, and then weld them. Such a preheated steel section welding device has become a new popular trend. Utility Model Content
[0003] This embodiment provides a steel section welding device that improves the stability of steel section forming and the efficiency of processing and production. By incorporating a preheating device into the specific structure, the steel plate to be bent is preheated and softened before welding. A smaller pressure welding roller is then used to create a larger welding entry angle, thereby improving welding quality. This technical solution is simple, convenient, low-cost, and easy to implement.
[0004] Specifically, a steel section welding device is used to complete the welding of a first sheet material 1 and a second sheet material 2, including a first input roller 4 for inputting the first sheet material 1 and a second input roller 5 for inputting the second sheet material 2. The first sheet material 1 is bent after passing through the first input roller 4 and contacts with the second sheet material 2 passing through the second input roller 5 and is welded into shape by a high-frequency welder. A preheating device 6 and a pressure welding roller 7 are also provided. The preheating device 6 is arranged on the side of the first sheet material 1 to preheat the first sheet material 1 before welding to soften it. The pressure welding roller 7 is arranged at the bending part of the first sheet material 1 to press the first sheet material 1 and the second sheet material 2.
[0005] According to one aspect of the specific implementation of the first embodiment of the present utility model, the pressure welding roller 7 is arranged on the opposite side where the first sheet material 1 and the second sheet material 2 contact each other, and a support roller 8 is also provided. The pressure welding roller 7 and the support roller 8 jointly complete the welding positioning of the first sheet material 1 and the second sheet material 2.
[0006] According to one aspect of the specific implementation of the first embodiment of the present invention, the bending angle of the first sheet material 1 is greater than or equal to 4°.
[0007] According to one aspect of the specific implementation of the first embodiment of the present invention, the first plate 1 and the second plate 2 after welding are perpendicular to each other to form a T shape.
[0008] According to one aspect of the specific implementation of the second embodiment of the utility model, a third input roller 9 is further provided for inputting a third sheet material 3. After passing through the third input roller 9, the third sheet material 3 is bent and contacts the second sheet material 2 passing through the second input roller 5 and is welded into shape by a high-frequency welder. The same preheating device 6 is provided on the side of the third sheet material 3 to perform preheating treatment before welding to soften it and a pressure welding roller 7 is provided at the bending position to press the third sheet material 3 and the second sheet material 2.
[0009] According to one aspect of the specific implementation of the second embodiment of the present invention, the bending angle of the third sheet material 3 is greater than or equal to 4°.
[0010] According to one aspect of the specific implementation of the second embodiment of the present invention, the first plate 1, the second plate 2 and the third plate 3 after welding are perpendicular to each other to form an H shape. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The features, advantages and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
[0012] Description of the serial numbers: first sheet material 1, second sheet material 2, first input roller 4, second input roller 5, preheating device 6, pressure welding roller 7, support roller 8, third sheet material 3, third input roller 9, high-frequency probe 10.
[0013] Figure 1 This is a comparative technical solution in this field, the T-shaped steel processing process diagram.
[0014] Figure 2 This is a comparative technical solution in this field, the H-shaped steel processing process diagram.
[0015] Figure 3 This is a processing diagram of T-shaped steel according to a specific embodiment of the present utility model.
[0016] Figure 4 This is a processing diagram of H-shaped steel according to a specific embodiment of the present utility model.
[0017] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale. DETAILED DESCRIPTION
[0018] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The detailed description of the following examples and the accompanying drawings are intended to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention. That is, the present invention is not limited to the preferred embodiments described, and the scope of the present invention is defined by the claims.
[0019] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified, “perpendicular” and “parallel” do not just have absolute meanings in a mathematical sense, but can be understood as “approximately perpendicular” and “approximately parallel”.
[0020] It should be understood that the specific embodiments described are only used to explain the present invention and are not used to limit the present invention. Terms such as first, second, etc. in the text are only used to distinguish one entity or operation from another entity or operation, and do not indicate any relationship or order between these entities or operations; in addition, terms such as up, down, left, right, front, and back in the text that indicate direction or orientation only indicate relative directions or orientations, not absolute directions or orientations. In the absence of additional restrictions, the elements defined by the sentence "including" do not exclude the presence of other elements in the process, method, article, or device that includes the elements.
[0021] Figure 1 This is a comparative technical solution in this field, the T-shaped steel processing process diagram.
[0022] Figure 3 This is a processing diagram of T-shaped steel according to a specific embodiment of the present utility model.
[0023] like Figure 1 and Figure 3 As shown, this embodiment provides a steel section welding device that can improve the stability of steel section forming and the efficiency of processing and production. By adding a preheating treatment device to the specific structure, the steel plate that needs to be bent is preheated and softened before welding, and then a smaller pressure welding roller is used to create a larger welding entry angle, thereby improving the quality of welding. This technical solution is simple, convenient, low-cost, and easy to practice. Compared with existing technical solutions, such as Figure 1The figure shows a first input roller 4 for inputting a first sheet material 1 and a second input roller 5 for inputting a second sheet material 2. When the first sheet material 1 contacts the second sheet material 2 after passing through the first input roller 4, a pressure welding roller 7 is set on the outer side of one side of the first sheet material 1 and a support roller 8 is set on the outer side of one side of the second sheet material 2 to press and bend it, and a high-frequency probe 10 of a high-frequency welding machine is set at the contact position to achieve high-frequency welding and form a T-shaped steel perpendicular to each other. The first sheet material 1 is in a cold state before bending, that is, it has not been heated and softened, so it cannot produce a larger bending angle. In the original production and processing technology, a larger pressure welding roller 7 and a smaller entry angle are used, that is, a large-diameter pressure welding roller 7 is used to press the two steel plates at the position where the two steel plates are spliced together, and the bending angle of the first sheet material 1 at the bending point is kept less than 4° to ensure that it can smoothly enter the welding station. In this way, the steel plate is directly sent to the high-frequency welding point for welding after producing a smaller bending angle without being heated and softened. However, since the steel plate is harder, the input speed of the incoming material will not be too high in this processing method. The larger pressure welding roller 7 also makes it impossible for the high-frequency probe 10 of the high-frequency welding machine to get close to the contact point between the first sheet material 1 and the second sheet material 2, which makes the welding process of the high-frequency welding machine unable to reach the optimal level. Moreover, after welding, the first sheet material 1 is bent and has internal stress, which will cause the shape of the finished steel section after welding to be unstable and easily deformed.
[0024] According to one aspect of the specific implementation of the present utility model, the detailed structure of the technical solution in the specific implementation may include a first input roller 4 for inputting the first sheet material 1 and a second input roller 5 for inputting the second sheet material 2. When the first sheet material 1 contacts the second sheet material 2 after passing through the first input roller 4, a pressure welding roller 7 is set on the outer side of one side of the first sheet material 1 and a support roller 8 is set on the outer side of one side of the second sheet material 2 to press and bend, and a high-frequency probe 10 of a high-frequency welding machine is set at the contact position to achieve high-frequency welding and form a T-shaped steel perpendicular to each other. The first sheet material 1 is also provided with a preheating device 6 at the position before bending. The preheating device 6 is preferably set as a medium frequency heating module in this embodiment. The first sheet material 1 is preheated by the preheating device 6. The first sheet material 1 has been preheated and softened before entering the high-frequency welding position, that is, it has been heated and softened, so it can produce a larger bending angle. This embodiment also uses a smaller pressure welding roller 7 and a larger entry angle, that is, a small-diameter pressure welding roller 7 is used to press the two steel plates at the position where the two steel plates are spliced together, and the bending angle of the first sheet material 1 at the bending position is kept greater than or equal to 4°. To ensure that it can enter the welding station smoothly, the steel plate is sent to the high-frequency welding position for welding after being heated and softened by generating a larger bending angle. Since the steel plate is softer, the input speed of the incoming material can be greatly improved in this processing method. The smaller pressure welding roller 7 also allows the high-frequency probe 10 of the high-frequency welding machine to be closer to the mutual contact point of the first sheet 1 and the second sheet 2. This makes the welding process of the high-frequency welding machine optimal. After welding, since the first sheet 1 has been pre-treated by heating and softening, it does not have internal stress after bending, so the shape of the finished steel section after welding is more stable and not easy to deform.
[0025] Figure 2 This is a comparative technical solution in this field, the H-shaped steel processing process diagram.
[0026] Figure 4 This is a processing diagram of H-shaped steel according to a specific embodiment of the present utility model.
[0027] like Figure 2 and Figure 4 As shown, the specific technical feature that distinguishes it from the previous embodiment is that the existing technical solution, such as Figure 2The diagram includes a first input roller 4 for inputting a first sheet material 1, a second input roller 5 for inputting a second sheet material 2, and a third input roller 9 for inputting a third sheet material 3. When the first sheet material 1 contacts the second sheet material 2 after passing through the first input roller 4, a pressure welding roller 7 is set on the outside of one side of the first sheet material 1 to press and bend it. When the third sheet material 3 contacts the second sheet material 2 after passing through the third input roller 9, a pressure welding roller 7 is set on the outside of one side of the third sheet material 3 to press and bend it. High-frequency welding is achieved by setting high-frequency probes 10 of a high-frequency welding machine at the contact positions. The pressure welding roller 7 for pressing and bending the first sheet material 1 and the pressure welding roller 7 for pressing and bending the third sheet material 3 are staggered and not in the same position. After welding, the first sheet material 1, the second sheet material 2, and the third sheet material 3 are perpendicular to each other to form an H-shaped steel. The first sheet 1 and the third sheet 3 are in a cold state before bending, that is, they have not been heated and softened, so they cannot produce a large bending angle. In the original production and processing technology, a larger pressure welding roller 7 and a smaller entry angle are used, that is, a large-diameter pressure welding roller 7 is used to press the two steel plates at the position where the two steel plates are spliced together, and the bending angle of the first sheet 1 and the third sheet 3 at the bending position is kept less than 4° to ensure that they can enter the welding station smoothly, so that the steel plates pass directly without being heated and softened. After a small bending angle is generated, it is sent to the high-frequency welding area for welding. However, due to the hardness of the steel plate, the input speed of the incoming material will not be too high in this processing method. The larger pressure welding roller 7 also makes it impossible for the high-frequency probe 10 of the high-frequency welding machine to get close to the mutual contact points of the first sheet 1 and the second sheet 2 and the third sheet 3 and the second sheet 2. This makes it impossible for the welding process of the high-frequency welding machine to reach the optimal level. In addition, after welding, the first sheet 1 and the third sheet 3 are bent and have internal stress, which will cause the shape of the finished steel section after welding to be unstable and easily deformed.
[0028] According to one aspect of the specific embodiment of the present utility model, the detailed structure of the technical solution in the specific embodiment may include a first input roller 4 for inputting the first sheet material 1, a second input roller 5 for inputting the second sheet material 2, and a third input roller 9 for inputting the third sheet material 3. When the first sheet material 1 contacts the second sheet material 2 after passing through the first input roller 4, a pressure welding roller 7 is set on the outer side of one side of the first sheet material 1 to press and bend. When the third sheet material 3 contacts the second sheet material 2 after passing through the third input roller 9, a pressure welding roller 7 is set on the outer side of one side of the third sheet material 3 to press and bend. High-frequency welding is achieved by setting a high-frequency probe 10 of a high-frequency welding machine at the contact position. The pressure welding roller 7 for pressing the first sheet material 1 to bend and the pressure welding roller 7 for pressing the third sheet material 3 to bend are staggered and not in the same position. After welding, the first sheet material 1, the second sheet material 2, and the third sheet material 3 are perpendicular to each other to form an H-shaped steel. The first sheet 1 and the third sheet 3 are respectively provided with a preheating device 6 at the position before bending. The preheating device 6 is preferably set as a medium frequency heating module in this embodiment. The first sheet 1 and the third sheet 3 are preheated by the preheating device 6. The first sheet 1 and the third sheet 3 have been preheated and softened before entering the high-frequency welding position, that is, they have been heated and softened, so they can produce a larger bending angle. This embodiment also uses a smaller pressure welding roller 7 and a larger entry angle, that is, a small-diameter pressure welding roller 7 is used to press the two steel plates at the position where the two steel plates are spliced together, and the bending angle of the first sheet 1 and the third sheet 3 at the bending position is kept greater than or equal to 4° to ensure To ensure that it can enter the welding station smoothly, the steel plate is sent to the high-frequency welding position for welding after being heated and softened by generating a larger bending angle. Since the steel plate is softer, the input speed of the incoming material can be greatly improved in this processing method. The smaller pressure welding roller 7 also allows the high-frequency probe 10 of the high-frequency welding machine to be closer to the mutual contact points of the first sheet 1 and the second sheet 2 and the mutual contact points of the third sheet 3 and the second sheet 2. This makes the welding process of the high-frequency welding machine optimal. After welding, since the mutual contact points of the first sheet 1 and the third sheet 3 are pre-treated by heating and softening, there is no internal stress after bending, so the shape of the finished steel section after welding is more stable and not easy to deform.
[0029] It should be understood that the description of the specific embodiments of the present invention is illustrative and should not be interpreted as an improper limitation on the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims and covers all embodiments and obvious equivalents falling within the scope.
Claims
1. A steel section welding device for completing the welding of a first sheet material (1) and a second sheet material (2), comprising a first input roller (4) for inputting the first sheet material (1) and a second input roller (5) for inputting the second sheet material (2), wherein the first sheet material (1) is bent after passing through the first input roller (4) and contacts with the second sheet material (2) passing through the second input roller (5) and is welded into shape by a high-frequency welder, characterized in that A preheating device (6) and a pressure welding roller (7) are also provided. The preheating device (6) is arranged on the side of the first sheet (1) to preheat the first sheet (1) before welding to soften it so that the bending angle of the first sheet (1) is greater than or equal to 4°. The pressure welding roller (7) is arranged at the bending part of the first sheet (1) to press the first sheet (1) and the second sheet (2). The pressure welding roller (7) is arranged on the opposite side where the first sheet (1) and the second sheet (2) contact each other and is also provided with a support roller (8). The pressure welding roller (7) and the support roller (8) jointly complete the welding positioning of the first sheet (1) and the second sheet (2).
2. A steel section welding device according to claim 1, characterized in that A third input roller (9) is also provided for inputting a third sheet material (3). The third sheet material (3) is bent after passing through the third input roller (9) and contacts the second sheet material (2) passing through the second input roller (5) and is welded into shape by a high-frequency welder. The third sheet material (3) is provided with a similar preheating device (6) to preheat the third sheet material (3) before welding to soften it so that the bending angle of the third sheet material (3) is greater than or equal to 4°. The pressure welding roller (7) is provided at the bending position to press the third sheet material (3) and the second sheet material (2) tightly.
3. A steel section welding device according to claim 2, characterized in that After welding, the first plate (1), the second plate (2) and the third plate (3) are perpendicular to each other to form an H shape.